LU-3691 llapi: do not use GOTO

as it's not defined in lustre_idl.h anymore.

Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Change-Id: If4bceb33ab2db5aa8c507e1c5f2857896ac39852
Reviewed-on: http://review.whamcloud.com/7231
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>